Improvement in jars for preserves and fruits



L. P. WHITEMAN.

Jars for Preserves andTru its. No,201,969.

Patented April 2, 1878,

LOUIS P. IVHITEMAN,

UNITED Srnrns PATENT OFFICE.

on NEW YORK, N. Y.

' IMPROVEMENT IN JARS FOR PRESERVES AND FRUITS.-

Specification form; lg art of Letters Patent No. 20: ,969, dated April 2, 1878; application filed February 12, 1878.

To allwhom it may concern:

Be it known that I, Louis P. WHITEMAN,

of New York, in the county and State of New York, have invented certain new and useful Improvements in Jars for Fruits and Preserves, of which the following is a specification:

An important object of my invention is to provide for using glass covers in connection with fruit and preserve jarsga'lthout the dauger of breaking and inconvenience in using them which have been hitherto experienced, owing to their being made detached from the means employed to fasten them in place.

To this end my invention consists in the combination, with a jar externally screwthreaded at the mouth, of an externally screwthreaded plate-like cover, a sheet-metal band overlapping the top of said cover, and prefera transverse section of the cover and packing.

Similar letters of reference designate corresponding parts in all the figures.

A designates a jar, which may be made of any suitable material- -such, for instance, as glass-and which is preferably madefiaring toward the mouth, or at least as large at the mouth as below it. On the exterior of this jar, at or near the mouth, is a screw-thread, a, which may be formed in any suitable manner.

B designates a cover, consisting essentially of a plate of suitable material, preferably glass, provided with a rim, b. of a size to fit snugly within the month of the jar A. The exterior of this cover is screw-threaded to cor-re spend with the jar.

I which overlaps the cover B around its edge,

and is screw-threaded, so as to engage with the screw-threads on the exterior ofthe jar and its cover.

D designates a packing-ring, of india-rubber or other suitable material, shown as fitted into a groove or rabbet, c, in the exterior of the cover, and fitting between the top of the jar and said cover, so as to seal the jar properly. The portion of the cover overlapping this packing-ring may flareor incline upwardly and outwardly, to aflbrd the edge of the jar a better opportunity of biting into the said packing-ring.

It will be understood that on the unscrewing of the fastener G from the jar the cover andpacking-ring are removed with it, and are nnited,.so that they will not be liable to be lost. 7 The sheetmetalfastener, owing to its form and flexibility, will form a protector to the cover in case the latter is dropped. and will reduce the liability of breakage. In order to insure-the cover and fastener being united, thelatter maybe tamped or indented into the former, as shown at s.

Hitherto glass plate like covers for jars 'have been objectipnable, because of their liability'to breakage, and because of the number of separate parts which are comprised in such jars, including the fastening devices for the covers.

I-am aware thatasheet-metal screw-threaded band has been employed to fasten a cover to a jar; but as the cover has been made to overlap the band the former has been liable to be removed or unscrewed and the band left on the jar. In the subsequent removal of the band it has been apt to be bent or injured so as to seriously impair it; and, moreover, it

has been apt tojoecome smeared from this cause, and occasion the smearing of the fin: gers, and otherwise cause much trouble.

I am also aware thatapacking-ring has been fitted in a groove in the cover of a ja hence I only consider this as my invention in combination with a sheet-metal screw-threaded band overlapping the cover, all said part-s beee eee threaded sheet-metal band overlapgjng said cover, and a packing-ring fittingimaigreeve in the exterior of the cover, substantially as and for the purpose s eeified.

LOUIS P. WHITEMAN \Vitnesses: '1. J. KEANE,

CHANDLER HALL. 

